A couple of the new sub-ohm tanks have stock coils that have "juice control".
If you are a "mouth-to-lung" inhaler or use thinner juice in these new tanks this feature may work well. It may help slow down the delivery of juice to the coil.
The Delta II tank calls it "Liquid Valve Control" and the SmokTech VTC tank calls it "Adjustable Liquid Feed". Check reviews on youtube to see how it works.